"It will not happen under our government," Harper told reporters in November. "We're very concerned about the spread of drugs in the country and the damage it's doing."

Both the U.S. and Canada maintain that prohibition is the way to tackle drug trafficking. But experts say this has only expanded the black market.

Do you think marijuana should be legalized in Canada? Why or why not? What effects do you think legalizing it would have on drug trafficking, if any? What else should be done to attack the problem of drug trafficking?